Indicators for modern and recent climate change in the highest mountain areas of Bulgaria

• Autorzy: Gachev E.
• Języki publikacji: EN

Abstrakty

EN

The highest Bulgarian mountains Rila (2,925 m a.s.l.) and Pirin (2,914 m a.s.l.) provide virgin mountain landscapes, intensive natural processes and a sharp sensitivity on natural and human impacts. The present paper focuses on the existing natural indicators for changes in climate during the last few centuries in the areas around the highest peaks Musala (the Rila Mountains) and Vihren (the Pirin Mountains), and the accent is put on the past and present existence of embryonic glacier forms. Dynamics of perennial ice bodies in the Pirin and the newly found fresh moraine ridge on the bottom of the Ledeno ezero Lake (the highest lake in the Rila Mts.) as well as the data from instrumental and historical records suggest a general trend of warming since the first two decades of the 20th century, especially expressed in the last 30 years. Inter-annual size variations of perennial ice bodies are found to be closely related to fluctuations of air temperature. Regional comparative studies show that perennial ice bodies in Bulgarian mountains are less sensitive to slight climate fluctuations than some other similar features in the Carpatho-Balkan area. Proper interpretation of these and future research results requires their incorporation in regional studies within the entire Carpatho-Balkan area.

Słowa kluczowe

EN

natural indicators of climate change; embryonic glacier forms; palaeoclimatolog; Rila Mts.; Pirin Mts.

• Wydawca: Stowarzyszenie Geomorfologów Polskich
• Czasopismo: Landform Analysis
• Rocznik: 2009
• Tom: Vol. 10
• Strony: 33--38
• Opis fizyczny: Bibliogr. 14 poz., rys.

Twórcy

autor

Gachev E.

• Southwestern University “N. Rilski”, Institute of Geography, Bulgarian Academy of Sciences, Acad. Georgi Bonchev str., Bl. 3, 1113 Sofia, Bulgaria,

Bibliografia

• Issue of the Institute of Hydrology and Meteorology –BAS. The lakes in Bulgaria (vol. XVI, 1964) (in Bulgarian).
• Gachev, E., Gikov, A., Gacheva, I., Nojarov, P. & Popov, M., 2008: Morphology of the bottom of Ledeno ezero (Rila mountain) and its relation to Quaternary evolution of relief. Problems of Geography 3–4 (in press) (in Bulgarian).
• Grünewald, K. & Scheithauer, J., 2007: Bohrung in einen Mikrogletscher. Zeitschrift Gletscherkunde und Glazialgeologie (in press).
• Grünewald, K., Scheithauer, J. & Gikov, A., 2008: Microglaciers in Pirin mountain. Problems of geography 1–2: 159–174 (in Bulgarian).
• Hughes, P.D., 2007: Recent behavior of the Debeli Namet glacier, Durmitor, Montenegro. Earth Surface Processes and Landforms 32 (10): 1593–1601.
• Leutelt-Kipke, S., 1932: Hydrographische und hydrochemische Untersuchungen an Hochgebirgissen des Bulgarischen Rilo-Dag. Archiv für Hydrobiologie, Bd. XXVIII, Innsbruck.
• Louis, H., 1930: Morphologische Studien in Südwest-Bulgarien. Geographische Abhändlungen, Stuttgart, series 3, No 2.
• Nojarov, P. & Gachev, E., 2007: Climatic factors determining changes in size of perennial snow patch in the cirque Golemia Kazan, Pirin. Annals of the Union of Scientists, Blagoevgrad, Bulgaria, vol. 1: 399–405 (in Bulgarian).
• Nojarov, P., 2008: Air temperature variability and change at peak Musala for the period 1933 – 2007. Geography 21 (2): 14–19 (in Bulgarian).
• Peev, H., 1956: About some forms of present glaciation in Pirin mountains. Priroda, 1: 34–41 (in Bulgarian).
• Popov, V., 1962: Morphology of the cirque Golemia Kazan – Pirin mountaun. Issue of the Institute of Geography – BAS, vol. VI: 86–99 (in Bulgarian).
• Popov, V., 1964: Observation over the perennial snow patch in the cirque Golemia Kazan, Pirin mountains. Issue of the Institute of Geography –BAS, vol. VIII: 198–207 (in Bulgarian).
• Radev, Z., 1920: Natural sculpture of high Bulgarian mountains. Nature. Sofia, Bulgaria (in Bulgarian).
• Velev, S., 2002: Contemporary variations of air temperature and precipitation. Geography of Bulgaria: 157–160 (in Bulgarian).